July 2nd, 2015, 17:24
In other words "please be patient"
Its an idiom which basically means "to allow someone to do something that is not usually allowed, or to treat someone less severely than is usual" or "to give someone additional freedom" time or space. Think of a Hanging, if you gave a person more slack then their feet would touch the ground.
The English language is full of them as are many others I'm sure. Hope thats explains it.